Horseshoe nail blanks



(No Model.) 7 Sheets-Sheet 1.

W. F. DURFEE.

MACHINE PON BEVELING AND TNIMMING HoRsEsHoE NAIL BLANKS.

No. 266,585. w, Patented Oct. 24, 1882.

MWI/55,555: I A I .5I/@N70 M Z-MH 7 Sheets-Sheet 2.

('No Model.)

W.. P. DURPEE.

MAGHINB FOB. BBVBLING AND TRIMMING HORSESHOB NAIL BLANES.

Patented Oot. 24, 1882.V

fNI/EN 0 y im WTA/5555.1

nur. wnshingw", D. c.

.au QNRMWN.

7 Sheets-Sheet 3.

Patented Oct. 24, 1882.

fA/MNTUH.

(No Model.)

W. F. DURFEB.

MACHINE FOR BBVBLING AND TRIMMING HORSESHOE NAIL BLANKS. No. 266,585.

l l [l 'l g3 o TQ" e Uh MTA/55.955'.

(No Model.) 7 Sheets-Sheet 4.

W. P. DURPEE. MACHINE PoR BEVELING AND T NIMMING HONSESHON NAIL BLANKS..

No. 266,585. I Patented 001:. 24, 1882..

@are

4 V17; TNES'SES.

fw VEN Toa 2%?? @W (No Model.)

l 7 Sheets-Sheet 5. W. F. DURFEE.

MACHINE FOR. BEVELING AND TRIMMING HORSBSHOE NAIL BLANKS. No. 266,585.

Patented Oot. 24,I 1882...

MTNA-S555:

N. versus Pmmrmhowpw. wnsh'zngum D. c.

7 Sheets-Sheet 6.

(No Model.)

W. P. DURFEE.

MACHINE POR BBVELING AND TRIMMING HORSESHOE NAIL BLANKS. No. 266,585.

Patanted Oct. 24,1882.l

Egan@ 6T N. PETERS. Fnnwmnogmphw. wuhmgwn. D, C.

(No Model.) 7 Sheets-Sheet 7.

W. P. DURPEE.

MACHINE POR BBVNLING AND TRIMMING HORSBSHOB NAIL BLANKS. No. 266,585. Patented Got. 24, 1882.

[NVENTDH WFTNESSES.

l f 'r l l O itlivrren STATES 4.grenat @trici-5.-

VILLIAM F. DURFEE, OF BRIDGEPORT, CONNECTICUT, ASSIGNOR TO THE IVHEELER Sr WILSON MANUFACTURING COMPANY, OF SAME PLACE.

MACHINE FOR BEVELING AND TRHVIMING HORSESHOE-NAIL BLANKS.

SPECIFICATION forming part of Letters Patent No. 266,585, dated 'October 24, 1882.

Application tiled March 30, 1882.

(No model.)

To all whom it may concern:

Be it known that I, WILLIAM F. DURFEE, acitizen oftheUnitedStates,residingatBridgeport, in the county ot' Fairtield and State of Connecticut, have invented certain new and useful Improvements in Machines for Beveling Horseshoe-Nail Blanks and Trimming the Same to a Uniform Length, of which the following is a specication.

For the purpose of showing the practical application of my invention, I have illustrated the same in the form of a machine for performing the beveling and trimming operations on double-ended blanks to be used in the manufacture of horseshoe-nails.

Similar letters of reference indicate like parts in the accompanying drawings, in which- Figure l is a side elevation of the complete machine, the lower right-hand corner ofthe zo frame being removed to show more clearly a part of the operating mechanism. Fig. 2 is an end elevation of the preceding gure, and is also drawn with a corner of the frame broken away for the purposeot' showing the links and lever operating the press-head. Fig. 3 is a plan view of the machine, and illustrates the manner of driving the various parts. Fig. 4 is an enlarged front elevation of the mechanism, (part of the frame-work being removed,) 3o showing the beveling device. Figs. 4a and 4" are two enlarged diagrams of the bevelingdies, the first showing their relations at the instant the lower corner of the moving die touches the blank, the second showing the same parts at the instant the moving die has reached its lowest position. Fig. 5 is a side elevation of Fig. 4, a fragment of the conveying-chain being shown. Fig. Gis an elevation ofthat side of the mechanism which is opposite the one 4o illustrated in Fig. 4, and shows the trimming devices; and Fig 6 represents in three views one of the trimming-dies,.m. Fig. 7 represents aplan view ofthe beveling and trimming mechanism with a portion of the base-plate. Fig. 8 shows the base-block and part of the conveying-chain in perspective. Fig. 9 represents in two enlarged views one-half of a blank, and shows the result of the operations performed thereon by the mechanisms illustrated.

In the several figures, A represents a frame attached to the base-plate A.

forsupporting the base-plate A and its attachments.

B is the base-block, secured to the buse-plate A, and t-hrough it passes the two vertical and parallel guide-bars D D, which bars are connected at their lower extremities by the yoke C and at their upper extremities to the presshead H.

S (see Figs. 1,2, and 3) is the driving-shaft, which rotates, by means ot' power applied at T, 6o in the bearings c a', attached to the base-plate A, audits motion is communicated through the initer-gears S2 and S3 to the short chai n-d riving shaft S', which revolves in the bearing b', also The shaft S carries with it the eccentric 0', (see Figs. 2 and 3,) which, through the rocking lever B and links O and l), communicates a vertical reciprocating movement to the yoke C and presshead H.

G,Fig. l, is an endless conveying-chain, couiposed ot' a series of similar link s, each having in its upper surface a notch or depression, z, for the reception ot' the blanks on which the beveling and trimming devices are to operate, said chain being carried on and by the two chain-wheels G and G2, (see Figs. 1, 2, and 3,) and is guided and supported in a groove formed in the upper side ot' the base-block B. (See Fig. S.) 8o

The operation of this combined mechanism is substantially as follows, to wit: The doubleended blanks to be operated upon are inserted in the notches z ot' the conveying-chain G, either by hand or automatically, and said chain is caused to move intermittingly in the direction of the arrow through the space of one link at each revolution of the driving-shaft S by the intervention ofthe short shaft S', carrying at its end the crank S4, which, in the course 9o ot' its revolutions, engages successively with the radial slots formed in the circumference ot' the star-wheel7 G3, attached to the chainwheelG. (SeeFigsland 3.) At'tertheblanks are inserted in the chain-links, as described, they are carried along by said chain until the extremities of one ot' the blanks rest in position on the lower dies, g g, ofthe beveling device, (which are capable of vertical adj ustmcnt,) when the press-head II, carrying the upperbev- 10o elin gdies,ff, is made to descend, as described, until the lower corners of said dies come in contact with the blank near its extremities, (see diagram, Fig. 4%) at which instant the projecting lugspp oi' the upper-die holders F F rest on the rounded heads of the stationary pressure-bolts e c carried by the standardsE E, (see Figs. 4, 5, and 7,) and as the press-head H continues its downward movement the contact of the lugsp p aforesaid with 'said pressure-bolts causes the swinging plates F F, carrying the'dies ff, to move about their axes b l), (see Figs. 4 and 7,) which are carried in the adjustable plates JJ, thus producing a simultaneous pressing and drawing action upon the blank, (see diagram, Fig. 413) resulting'in giving to its extremities the form shown at i in Fig. 9. During the following upward movement of the press-head H aforesaid the swinging die-holding plates F F and their appurtenances are caused to return (by means of the spring s) to the position which they occupied before the said press-head commenced its downward movement.

For the purpose of adapting these devices to different lengths of blanks, the plates J J, hereinbefore mentioned, are made to adjust horizontally at right angles to the chain by means oi' the screws t t, and are clamped in position, when adjusted, bythe wedges u u, the same being operated by the screws t t. For a like purpose the pressure-bolt standards E E, attached to the plates L L, are made adjustable horizontally to or from 'the chain Gr and at right angles thereto by the screws Z l, acting on said plates; and, further, for the purpose of making the lower dies, gg, more accessible, said standards are made to swing about the vertical studs a (t after the withdrawal of the hand-screws d d. The upper dies,ff, are cylindrical in form, (their lower extremities being polygonal in form,) and admit of a rotation for the purpose ot' bringing a new corner to bear upon the work (see diagram, Fig. 4a) when the corner in use has become misshapen. After having been operated upon at their extremities, as hereinbefore described, the blanks are, by a succession of movements of the chain, brought into position over the lower dies, a n, ,of thetrimming devices, (which dies are located on the opposite side ofthe base-block B to that occupied by the lower dies of the beveling device before described,) so thatwhen the presshead His moved downward the upper trimming-dies, m m, carried thereon will act, with the lower stationary dies, a a, to trim off the surplus metal at the points of the blanks, as on the line :v x, Fig. 9.

For the purpose of adapting this device to dierent lengths of blanks, the plates M M and N N, carrying the upper and lower dies, are

provided with adjustments substantially the same as those already described in connection with the upper die-holder of the beveling de- V106.

For the purpose of facilitating the renewal of the cutting-edges of the trimmingdies they are made cylindrical, with their cutting ends ot' polygonal cross-section, (see Fig. 6%) so that by turning them in their respective holders a sharp cutting-edge may be substituted for a dulled one. Said dies are also provided with a vertical adjustment whereby to compensate for the amount of metal removed from their polygonal ends when they are resharpened.

Having thus described my improvements, what I claim as new, and desire to secure by Letters Patent, is-

1. A beveling mechanism composed ot the vertical] y-ad j ustable lower dies, g g, the swinging die-holders F F, having lugs p p, the Lipper dies, ff, carried by said holders, the pressurebolts' c e, and suitable supporting and operating devices, all combined and arranged substantially-as setforth, whereby a combined pressing and drawing motion is imparted to the beveling-dies, substantially as and for the purpose described.

2. The combination, with the base-plate A, block B, vertically-movable press-head H, and the notched conveying-chain G, ot' the horizontally-adjustable plates L L and J J, swinging' standards E E, having pressure-bolts e c, vertically-adjustable lower dies, g g, and the swinging die-holders F F, having lugs p p and upper dies, fj', substantially as and for the purpose described. f

3. The combination ofan intermittingly-moving chain having notches adapted to receive double horseshoe-nail blanks, the head El, up-

' per beveling and trimming dies carried thereby, and the base-block B, provided with lower beveling and trimming dies, substantially as described.

4. The combination, with an intermittinglymoving cha-in having notches adapted to carry double horseshoe-nail blanks, of the head H,

trimming-dies m fm carried thereby, and hav-' ing their ends polygonal in cross-section, and the base-block B, provided with lower similarly-shaped dies, n a, substantially as described.

5. rlhe combination, with an intermittinglymoving chain provided with notches adapted to receive and carry double horseshoe nail blanks, of upper and lower beveling and trim-- ming dies, means for adjusting said dies to varying lengths of blanks, and suitable operating mechanism, substantially as described.

In testimony whereof I affix my signature in presence of two witnesses.

WILLIAM F. DURFEE. Witnesses:

IsAAc HOLDEN, GEORGE TERRY.

IOO

IOS

IIO 

